Nonlinear density dependence of the positron decay rate in helium
- 1 April 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 21 (4) , 1347-1349
- https://doi.org/10.1103/physreva.21.1347
Abstract
The decay rate of thermalized positrons in helium is calculated as a function of the fluid density, incorporating the multiple scattering of the positron off the atoms. The obtained nonlinearity agrees with experimental data outside the self-trapping region.Keywords
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